Check mnemonic and scan derivations to choose one

Closes #37 (closed)

src/app/account/auth/derivation-selection/derivation-selection.component.html

+<ion-header>
+  <ion-toolbar>
+    <ion-title translate>AUTH.SELECT_DERIVATION.TITLE</ion-title>
+  </ion-toolbar>
+</ion-header>
+
+<ion-content>
+  @if (loading) {
+    <ion-item lines="none">
+      <label>LOGIN.SCAN_DERIVATIONS</label>
+    </ion-item>
+  } @else {
+    <ion-list>
+      <ion-radio-group [(ngModel)]="selectedDerivation" (ngModelChange)="onSelectionChange()">
+        <ion-list-header>
+          <label translate>AUTH.SELECT_DERIVATION.AVAILABLE_WALLETS</label>
+        </ion-list-header>
+        @for (account of derivations; track account.address) {
+          <ion-item (click)="selectDerivation(account)" tappable [class.selected]="selectedDerivation === account">
+            <ion-icon aria-hidden="true" slot="start" name="key"></ion-icon>
+            <ion-label>
+              <h2 translate>COMMON.ADDRESS</h2>
+              <p class="ion-text-nowrap">
+                <span>{{ account.address | addressFormat }}</span>
+              </p>
+            </ion-label>
+            <ion-badge slot="end" color="light">
+              {{ account | balance | amountFormat }}
+            </ion-badge>
+          </ion-item>
+        }
+      </ion-radio-group>
+    </ion-list>
+  }
+</ion-content>
+
+<!-- TODO: Consider using common form buttons used in the rest of the app for consistency, reusability and responsiveness -->
+<ion-footer>
+  <ion-toolbar>
+    <ion-row class="ion-no-padding">
+      <ion-col></ion-col>
+
+      <!-- buttons -->
+      <ion-col size="auto">
+        <ion-button fill="clear" color="dark" (click)="onCancel()">
+          <ion-label translate>COMMON.BTN_CANCEL</ion-label>
+        </ion-button>
+
+        <ion-button
+          [fill]="invalid ? 'clear' : 'solid'"
+          [disabled]="!selectedDerivation"
+          (click)="doSubmit()"
+          (keyup.enter)="doSubmit()"
+          color="tertiary"
+        >
+          <ion-label translate>COMMON.BTN_CONTINUE</ion-label>
+        </ion-button>
+      </ion-col>
+    </ion-row>
+  </ion-toolbar>
+</ion-footer>